Waterproof material.



WATERPROOF MA ERIAL.

APPLICATION FILED JU \Y 31, 1907.

921,535. Patented May 11, 1909.

J. GLASSFICD.

/VEKS or the like water proof. Heretofore water 'tion product coming from gasdnains and UNITED STATES PATENT oFFroE.

JOHN GLASSFORE, OF JERSEY CITY, NE JERSEY, ASSIGNOR TO CONSOLIDATED WATER- PROOF COMPANY, OF NEW YO i, N. Y., A CORPORATION OF NEW YORK.

WATER/@ROOF MATERIAL.

f' Specific/ation of Letters Patent. Applicatiorrled July 31, 1907. Serial No. 386,501.

No. 921,538. Patented May 11, 1909.

To all whom it may concern'.-

Be it known that I, JOHN GLAssFoRD, a l citizen ofthe United States, and residing in l Jersey City, Hudson county, New Jersey,

have inyented new and useful Improvements in Waterproof Material; andfin order that those skilled in the art may understand, make, and practice the said invention, I give the following specification thereof.

My invention relates to water proof material of the character employed for rendering such structures as subways, underground conduits, walls, foundations, pipe galleries against water and dampness but against gas drip oils, and organic solvents in general, which preserves its toughness and flexibility and which will readily and firmly adhere to any surface wet or dry without the use of a hot or fluid asphaltic or similar cement.

In the accompanying drawingare illustrated several forms of the invention.

Figure l represents one form of the invention in sectional view, the plies and layers being exaggerated for the sake of clearness of illustration. Figs. 2, 3 and 4 are similar views of other forms of the invention.

In all the views the same reference characters indicate corres ending features.

The water proo g material is preferably constructed according to my invention of a fabric such as paper, felt, burlap, or any suitable fabric, indicated at B in the drawing, which is saturated with bituminous composition, by passing the same through the heated composition in a suitable tank, or in any other manner which may be convenient or desired. The object is to thoroughly impregnate and saturate the fabric with the composition. The composition employed for this purpose may be any suitable bituminous or asphaltie waterproofing composiproof material of various kinds and structures have been employed for these purposes, but all such material with which l am acquainted, while water proof when lirst laid, rapidly deteriorates, loses its water proof character and becomes useless. The main causes of this I have ascertained to be due to the fact that the material is not proof against the action of the soilor other surroundings in or near which it is laid. In manufacturing districts and 'in cities many substances of various kinds, manufacturing wastes, etc., ind their way into the soil which have a-strong chemical or solvent action on known waterproofing material usually employed in subterraneous construction. Among these substances the principal are: what is known as gas drip a condensapipes and containing the lighter hydrocarons-benmzole, benzin, kerosene, lubricating oils and .other organic substances lwhich exert a strong solvent action on the bituminous and asphaltic waterproofing material usually employed. Such iiuids, or soil drainage or seepage containing the same, coming in contact with ordinary waterproofing material rapidly penetrate the same and thereby destroy their waterproof properties and render the same useless. Another objection to water proofing material commonly used is 'that it becomes hard and brittle, Vand cracks and fissures form therein, particularly upon bending the same, .and water and dampness penetrate thecracks and fissures. A further defect in ordinary water roong material is that it requires the use ofpa uid cement to secure the same to the walls, subway .or foundation surfaces. This uid cement is usually in the form of a molten asphalt, pitch, tar or the like or in the having a meltingI point of about 140 F. This composition should be applied to the fabric at a temperature of about 225 F., to insure that it will thoroughly'penetrate all the pores and interstices of the fabric and .completely impregnate and saturateit. The fabric so treated is illustrated by the reference character B in the drawing. To one 'side of this fabric is applied a layer or ply of material, indicated inthe drawing by the character A, which is impervious to and. unacted upon by gas drip or organic solvents. For this material may be employed waterproof material which is prooil not only` tion usually employed for the purpose, and

. issues from the saturating tank by pressing solvents including gas drip;

any one ofthe following which are men tioned as examples: Aparchmentor parch-` nous substance may also be tannated, that is,

' -treated with tannic acid instead'of chromatized. I have found a parchmentized tissue or sheet such as parchmentized paper emnous or asphaltic composition i heated condition to t ily made to adhere invention 1s 'one on each loyed for the layer A, to give good results; ut any of the other materials mentioned may be employed without departing fronr the invention.

The layer or ply A is united to the fabric B in any desired manner'as by rolling the two plies A and B together as the latter the same between rollers, or the layer A may be spread upon the treated fabric B and rolled thereon when its nature is such as to permit this mode of operation.

Fig. 3 in the drawingillustrates one of the estforms of the invention and shows a fabric made up of the layers B and Atreated and united as above described and an eXterior layer C which is composed of a bitumihaving a higher melting temperature than that used for layer B. The composition employed for the layer C should have a melting temperature of about 300 F., and may be a plied at a slightly higher temperature.A or ordinary purposes the fabric according to my ofthe structure .shown in Fig. 4 in which the drip proof material or layer A forms amiddle g y or layer between two plies or layers B;- of Waterproof material, side thereof, andan outer layer of the asphaltic composition C. In order to give the materi ofadherin to the surfaces when it 1s applied, one or bot faces is rovided with a coating of sand or fine grave or broken stone, grit or the like which is partially embedded 1n the outer layer C leaving portions of the sand particles protruding from the face of the layer'. This mineral facing is illustrated bythe reference character D. This-mineral facing of sand or the like is referably a plied in a e surface o the fabric by sprinkling the same thereon and l'pressing the same therein. By providing t efabric with a facing of this character it may be read` to any cement or concret-e al the property yand a bonding surface of' surface. The fabric is applied to such surface when the latter is green or soft. It ,will firmly adhere to a Wet or green cement or concrete surface, the protruding portions of the sand or mineral particles being embedded in the soft cement or concrete, by pressing or rolling in contact therewith and when the cement is set or hardened the adhesion between the fabric andthe cement is perfect. The fabric may be applied to a hardened cement concrete or any other surface by applying a layer of lPortland or hydraulic cement to the surface and spreading the fabric thereon. rl`he projecting portions of the mineral particles form a bonding surface for the fabric which unites With the cement wall or other surface to which it is applied.v

The fabric may if desired be made after the manner illustrated in Fig. 2 in which are shown two plies or layers of a drip proof material A, one on each side of a water proof fabric B. lt will be understood that as many lies of drip rproof material may be employe as is desire or necessary and thefabric may be built up of alternate layers of water proof fabric and drip proof materials. The outer facing of sand or the like may of course be omitted if desired.

1. A waterproofing material having in combination a f bric or ply impregnated with a Waterproof bituminous composition and a layer or ply of parchmentized cellulose.

2. A waterproofing material having in combination a fabric or -ply impregnated with a Waterproof bituminous composition, a

la'yer or ply of parchmentized cel ulose and an outer coating of a pliable bituminous lcomposition. A

8. A waterproofing material having in combination a plurality of layers of fabric impregnated with-a bituminous Waterproof composition, an intermedi ate layer of parchmentized paper and an outer; coating of bituminous waterproof composition.

'4. A Water roofing material Vhaying in combination a aver or ply of fabric impregnated with a bituminous waterproof composition, a layer or ply of parchmentized cellulose and an outer bondmg surface lformed of mineralparticles protruding therefrom. 4 5. A waterproofing material having in combination a layer or ply of fabric impregnated with a bituminous waterproof composition, a layer or ply of parchmentized paper an outer coating of bituminous composition mineral particles partially embedded in said outer coating and. protruding therefrom. i

JOHN GIJASSFQRDQ-`- Witnesses: E. R. Mnmn, HENRY C. WORKMAN. 

